       Re: Numerical Evaluation of Sqrt[]

• To: mathgroup at smc.vnet.net
• Subject: [mg4106] Re: Numerical Evaluation of Sqrt[]
• From: Harald Berndt <haraldb at nature.berkeley.edu>
• Date: Tue, 4 Jun 1996 02:19:24 -0400
• Organization: University of California Forest Products Lab
• Sender: owner-wri-mathgroup at wolfram.com

```Dennis S. Lindell wrote:
>
> Folks,
>
> I'm a new user of Mathematica and am unable to get a full numerical
> evaluation of the Sqrt function in one case.  Following are the
> input and output lines of the case giving me trouble.
>
> In[]:=  a=2;
>         b=2;
>         c=2;
>         d=2;
>         e=2;
>         f=2;
>         g=Sqrt[(a+b)^2 + (c+d)^2 + (e+f)^2]
>
> Out[]=  Sqrt[32. + 16. ]
>
> I've tried appending //N and inclosing the function in N[], but the
> result is the same.  I'd be grateful for any pointers,
>
> Please respond directly to me at <lindell at arl.mil>.

What version of Mathematica are you using? I cannot duplicate your
problem. I get:

In:=
a=2;
b=2;
c=2;
d=2;
e=2;
f=2;
g=Sqrt[(a+b)^2 + (c+d)^2 + (e+f)^2]
Out=
4 Sqrt
In:=
N[g]
Out=
6.9282

--
_______________________________________________________________
Harald Berndt                          University of California
Research Specialist                  Forest Products Laboratory
Phone: 510-215-4224                            FAX:510-215-4299
_______________________________________________________________

==== [MESSAGE SEPARATOR] ====

```

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